Title :
Stability of EVA modules
Author :
Petersen, R.C. ; Wohlgemuth, J.H.
Author_Institution :
Solarex Corp., Frederick, MD, USA
Abstract :
Reported observations on laminated glass superstrate modules with crosslinked ethylene/vinyl acetate (EVA) encapsulant include increased crosslinking of EVA, discoloration of the encapsulant, and formation of acetic acid within the module, following lengthy service in the field. One firm has begun a study of its EVA modules, obtaining and analyzing samples that have been operating in the field for eight to ten years. The data show that even under roof-mounted conditions in the Southwest US (one of the worst-case scenarios) there has been no measurable loss in electrical output power and no significant degradation of encapsulant mechanical properties
Keywords :
polymers; solar cell arrays; acetic acid; crosslinked ethylene/vinyl acetate; electrical output power; encapsulant; laminated glass superstrate modules; roof-mounted conditions; stability; Degradation; Glass; Loss measurement; Manufacturing; Photovoltaic systems; Power generation; Power measurement; Solar power generation; Stability; Surface texture;
Conference_Titel :
Photovoltaic Specialists Conference, 1991., Conference Record of the Twenty Second IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-87942-636-5
DOI :
10.1109/PVSC.1991.169276
